diff options
Diffstat (limited to 'src/corelib/kernel/qwineventnotifier.cpp')
-rw-r--r-- | src/corelib/kernel/qwineventnotifier.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/src/corelib/kernel/qwineventnotifier.cpp b/src/corelib/kernel/qwineventnotifier.cpp index c694237dc3..d2c623d489 100644 --- a/src/corelib/kernel/qwineventnotifier.cpp +++ b/src/corelib/kernel/qwineventnotifier.cpp @@ -140,11 +140,11 @@ QWinEventNotifier::QWinEventNotifier(HANDLE hEvent, QObject *parent) { Q_D(QWinEventNotifier); QAbstractEventDispatcher *eventDispatcher = d->threadData->eventDispatcher.load(); - if (!eventDispatcher) { + if (Q_UNLIKELY(!eventDispatcher)) { qWarning("QWinEventNotifier: Can only be used with threads started with QThread"); - } else { - eventDispatcher->registerEventNotifier(this); + return; } + eventDispatcher->registerEventNotifier(this); d->enabled = true; } @@ -215,6 +215,10 @@ void QWinEventNotifier::setEnabled(bool enable) QAbstractEventDispatcher *eventDispatcher = d->threadData->eventDispatcher.load(); if (!eventDispatcher) // perhaps application is shutting down return; + if (Q_UNLIKELY(thread() != QThread::currentThread())) { + qWarning("QWinEventNotifier: Event notifiers cannot be enabled or disabled from another thread"); + return; + } if (enable) eventDispatcher->registerEventNotifier(this); |